Primghar
BrownfieldPrimghar, O'Brien, Iowa · City of Primghar - (IA)
Primghar is a oil plant in Primghar, O'Brien, Iowa, retired 2022-12-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 1 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Nearby datacenter candidate sites
Scored candidate sites near Primghar, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| O'BRIEN | Substation-Adjacent | IA | O'Brien County | 345 kV | 600 MW | 1.4 yrs | 75.6 |
| UNKNOWN138106 | Substation-Adjacent | IA | O'Brien County | 345 kV | 600 MW | 1.4 yrs | 73.4 |
| UNKNOWN130488 | Substation-Adjacent | IA | Clay County | 161 kV | 100 MW | 1.4 yrs | 72.9 |
| Greenfield (KOSSUTH - O'BRIEN) | Greenfield | IA | Clay County | 345 kV | 600 MW | 1.4 yrs | 70.8 |
| WISDOM | Substation-Adjacent | IA | Clay County | 161 kV | 100 MW | 1.4 yrs | 70.3 |
| Greenfield (LAKEFIELD JUNCTION - O'BRIEN) | Greenfield | IA | Dickinson County | 345 kV | 600 MW | 1.4 yrs | 69.1 |
| Greenfield (LAKEFIELD JUNCTION - O'BRIEN) | Greenfield | IA | Osceola County | 345 kV | 600 MW | 1.4 yrs | 68.7 |
| Greenfield (LAKEFIELD JUNCTION - O'BRIEN) | Greenfield | IA | Osceola County | 345 kV | 600 MW | 1.4 yrs | 68.6 |
Nearby internet exchanges
- South Spencer Aureon hutSpencer, IA · 2 networks
See all datacenter sites in Iowa →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Primghar, Primghar, O'Brien, Iowa. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.